Running Pace Calculator
Distance & Time → Pace
Understanding This Calculator
Pace — time per unit distance — is the standard way runners measure and target effort, since it’s independent of the specific race distance. Knowing your pace lets you compare performances across different distances and plan splits for a goal race time.
Pace per mile and pace per kilometer are simple unit conversions of the same underlying speed, so this calculator gives you both from a single time entry.
Pace (min/mile) = total time ÷ distance in miles
- total time hours, minutes, seconds converted to seconds
- distance in miles or kilometers
| Distance | Time | Pace/mile |
|---|---|---|
| 5K | 25:00 | 8:03/mi |
| 10K | 50:00 | 8:03/mi |
| Half Marathon | 1:50:00 | 8:24/mi |
| Marathon | 4:00:00 | 9:09/mi |
Frequently Asked Questions
How do I convert pace to speed?
Speed (mph) = 60 ÷ pace in minutes per mile. This calculator does that conversion for you automatically.
What’s a ‘good’ running pace?
It’s entirely relative to your fitness and goals — the useful benchmark is your own pace trend over time, not a fixed number.